Improvement in telegraph relays and sounders



w. s.' ROSE.

Telegraph Relays and Sounders.

N0,157,764, Patented Decg15,1874.

M222 mar e; 172 we mfw";

THE GRAPHICCU. PHOTO'L|TH.39& 44 PARK FLACr N Y came STATES PATENT OFFICE,

WILLIAM S. ROSE, OF OOLOHESTER, ILLINOIS.

IMPROVEMENT IN TELEGRAPH RELAYS AND SOUNDERS.

Specification forming part of Letters Patent No. 157,764, dated December 15, 1874; application filed April 13, 1874.

To all whom it may concern:

Be it known that I, WM. S. ROSE, of Col chester, in the county of MeDonough and State of Illinois, have invented a new and useful Improvement in Telegraph-Instruments; and I do hereby declare that the following is a full and exact description of the same, reference being bad to the accompanying drawings and to the letters of reference marked thereon.

This invention relates to that class of telegraph-instruments known as sounders; and it consists in the combination of a horizontal bar attached to the base of the box by a hinge, and provided with a cross-bar hinged thereto and supporting the magnets, for readily supporting and adjusting them.

In the drawings, Figure 1 represents a perspective View, with a part of the box cut away for the purpose of showing the interior. Fig. 2 is an elevation showing the adj Listing-spring.

To enable others skilled in the art to make and use my invention, I will now proceed to describe its construction. A is a horizontal bar attached to the base of the box H by a hinge, 0. B is a cross-bar placed at right angles with the bar A,to which it is attached by means of a hinge, c. The magnets D D,shown in dotted lines, are firmly attached to the crossbar B at t t. Through the front end of A passes a setscrewm, guided loosely in a bracket, :0, projecting from the case. The lower end of this set-screw rests upon the base of instrument, and, accordingly as it is turned, it raises or lowers the lever A, and consequently the magnets D D, thereby adjusting them. 0 is a lever, to which the armature a is attached just above the cores of the magnets I) D. At

one end of the lever c is a spiral spring, d, attached to the thumb'screw y, shown in Fig. 2. At the other end of the lever c, and-attached to the box H, is a standard, 8, which has projections at right angles, the lower projection forming a base for the sounding-posti and the upper a bearing for the set-screw J is the frame, to which the lever c is pivoted by setscrews h h.

The operation is as follows: The line-wires are attached to the instrument at the bindingposts 9 g. The horizontal bar A receives the proper adjustment by means of the thumbscrew a,whicli passes through an arm, as shown, and through the bar A, in which a proper screw is cut. The head of the thumb-screw n rests on the arm, as shown, and when turned to the right or left the horizontal bar A is raised or lowered, as may be desired, until the cores of the magnets are brought to the desired distance from the armature a. The set-screw K is raised to give the lever c the necessary amount of vibration required to give a proper sound.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination of the horizontal bar A, provided with cross-bar B and adjusting-screw n,with the magnets D D and their armatures, substantially as shown and described, and for the purpose set forth.

WILLIAM S. ROSE. IVitne-sses:

TI-ros. J. Peron, D. G. Peron. 

